Abstract
LONDON. Physical Society, April 24.—Mr. T. H. Blakesley, vice-president, in the chair.-Mr. W. B. Croft exhibited several novel and ingenious pieces of physical apparatus.—Dimensional analysis of physical quantities and the correlation of units, by Mr. A. F. Ravenshear. The object of this paper is to knit together various divergent views which are current on the subject of dimensions. It is shown that while (1) dimensional analysis and the correlation of units of different kinds can be pursued in one direction until, with completed correlation, we arrive at degrees of undifferenti-ated quantity, a different procedure may be followed which (2) gives rise to various systems of dimensions descriptive of the physical relationships of the quantities treated. The conditions giving rise to dimensional relations are first set out, and it is proposed to distinguish the purely quantitative reading of a dimensional formula by enclosing the sign of equality in square brackets thus:—
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Societies and Academies . Nature 68, 22–24 (1903). https://doi.org/10.1038/068022b0
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DOI: https://doi.org/10.1038/068022b0